55779463 has 4 divisors (see below), whose sum is σ = 55794640. Its totient is φ = 55764288.

The previous prime is 55779457. The next prime is 55779467. The reversal of 55779463 is 36497755.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55779463 is a prime.

It is a super-2 number, since 2×55779463² = 6222696985136738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55779467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1783 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (13948660).

Almost surely, 2^55779463 is an apocalyptic number.

55779463 is a deficient number, since it is larger than the sum of its proper divisors (15177).

55779463 is an equidigital number, since it uses as much as digits as its factorization.

55779463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176.

The product of its digits is 793800, while the sum is 46.

The square root of 55779463 is about 7468.5649893403. The cubic root of 55779463 is about 382.0833471269.

The spelling of 55779463 in words is "fifty-five million, seven hundred seventy-nine thousand, four hundred sixty-three".